Polyimide and high-temperature adhesive of polyimide from meta
substituted phenoxy diamines
    21.
    发明授权
    Polyimide and high-temperature adhesive of polyimide from meta substituted phenoxy diamines 失效
    聚酰亚胺和来自间位取代的苯氧基二胺的聚酰亚胺的高温粘合剂

    公开(公告)号:US4847349A

    公开(公告)日:1989-07-11

    申请号:US44028

    申请日:1987-06-03

    IPC分类号: C08G73/10 C09J179/08

    摘要: Polyimide having repeating units of the following formula (I) and its polyamic acid precursor having repeating units of the following formula (II) are disclosed; ##STR1## (where Y is a radial selected from the group consisting of a bond, divalent hydrocarbon having 1 to 10 carbons, hexafluorinated isopropylidene, carbonyl, thio, sulfinyl, sulfonyl and oxide, and R is a tetra-valent radical selected from the group consisting of aliphatic radical having 2 and more carbons, cyclo-aliphatic radical, monoaromatic radical, condensed polyaromatic radical, and noncondensed polyaromatic radical wherein aromatic radicals ae mutually connected with a bond or a crosslinking function).Typical examples of polyimide and polyamic acid include where Y is thio radical and R is ##STR2## Y is a bond and R is III or IV, andy is isopropylidene radical and R is IV.The polymers can be prepared from corresponding diamine and tetracarboxylic acid dianhydride.Polyimide or polyamic acid of this invention is excellent for high-temperature adhesive.

    摘要翻译: PCT No.PCT / JP86 / 00335 Sec。 371日期:1987年6月3日 102(e)1987年6月3日PCT PCT日期1986年6月30日PCT公布。 出版物WO87 / 01378 公开了具有下式(I)的重复单元的聚酰亚胺及其具有下式(II)的重复单元的聚酰胺酸前体。 (Ⅰ)(Ⅱ)(其中Y是选自由键,碳原子数为1〜10的二价烃,六氟化异亚丙基,羰基,硫基,亚磺酰基,磺酰基和氧化物组成的组的径向,R为 是选自具有2个或更多个碳的脂族基团,环脂族基团,单芳族基团,缩合多芳族基团和非缩合多芳族基团的四价基团,其中芳族基团与键或交联官能团相互连接) 。 聚酰亚胺和聚酰胺酸的典型实例包括其中Y为硫基,R为Y,R为III或IV,且为异丙叉基,R为IV。 聚合物可以由相应的二胺和四羧酸二酐制备。 本发明的聚酰亚胺或聚酰胺酸对于高温粘合剂是优异的。

    High-temperature adhesive polyimide from 2,2-bis[4-(3-amino
phenoxy)phenyl]1,1,1,3,3,3-hexafluoro propane
    22.
    发明授权
    High-temperature adhesive polyimide from 2,2-bis[4-(3-amino phenoxy)phenyl]1,1,1,3,3,3-hexafluoro propane 失效
    2,2-双[4-(3-氨基苯氧基)苯基] 1,1,1,3,3,3-六氟丙烷的高温粘合聚酰亚胺

    公开(公告)号:US4795798A

    公开(公告)日:1989-01-03

    申请号:US18496

    申请日:1987-02-25

    IPC分类号: C08G73/10

    CPC分类号: C08G73/105

    摘要: This invention discloses high-temperature adhesives having a good light-transmittance and excellent high-temperature flowability which comprises polyimide having recurring units represented by the following formula (I) ##STR1## (where R is a tetra-valent radical selected from the group consisting of aliphatic radical having not less than two carbons, cyclo-aliphatic radical, monoaromatic radical, condensed polyaromatic radical, and non condensed polyaromatic radical wherein aromatic radicals are mutually connected with a bond or a crosslinking function).The polyimide is obtained by preparing polyamic acid through the reaction of 2,2-bis[4-(3-aminophenoxy)phenyl]-1,1,1,3,3,3,-hexafluoropropane as a diamine component with tetracarboxylic dianhydride such as pyromellitic dianhydride, 3,3',4,4'- biphenyltetracarboxylic dianhydride, bis(3,4-dicarboxyphenyl) ether dianhydride and 3,3'4,4'-benzophenonetetracarboxylic dianhydride, and further conducting the ring-closing reaction of resultant polyamic acid by dehydration.

    摘要翻译: 本发明公开了具有良好的透光率和优异的高温流动性的高温粘合剂,其包含具有由下式(I)表示的重复单元的聚酰亚胺(I)(其中R是选自 由具有不少于2个碳的脂族基团,环脂族基团,单芳族基团,缩合多芳族基团和非缩合多芳族基团组成的组,其中芳族基团与键或交联官能团相互连接)。 聚酰亚胺通过以二胺组分2,2-二[4-(3-氨基苯氧基)苯基] -1,1,1,3,3,3 - 六氟丙烷与四羧酸二酐的反应制备聚酰胺酸得到, 作为均苯四酸二酐,3,3',4,4'-联苯四羧酸二酐,双(3,4-二羧基苯基)醚二酐和3,3'4,4'-二苯甲酮四羧酸二酐,进一步进行所得物的闭环反应 聚酰胺酸脱水。

    Linear polyamic acid, linear polyimide and thermoset polyimide
    23.
    发明授权
    Linear polyamic acid, linear polyimide and thermoset polyimide 失效
    线性聚酰胺酸,线性聚酰亚胺和热固性聚酰亚胺

    公开(公告)号:US5708128A

    公开(公告)日:1998-01-13

    申请号:US668836

    申请日:1996-06-24

    IPC分类号: C08G73/10 C08G69/26

    摘要: Novel thermoset polyimide and composite materials comprising the thermoset polyimides and a fibrous reinforcement are prepared according to this invention. The thermoset polyimides are obtained by heat-treating a linear polyamic acid or a linear polyimide prepared by using 4,4'-bis(3-aminophenoxy)biphenyl and pyromellitic dianhydride as essential monomers or by adding 4,4'-diaminodiphenyl ether or 3,3',4,4'-biphenyltetracarboxylic dianhydride to the essential monomers and by end-capping the molecular chain end with an aromatic dicarboxylic anhydride having a carbon-carbon triple bond. The thermoset polyimides have essential excellent properties of thermoplastic polyimide and additionally has enhanced heat resistance and improved mechanical properties. The thermoset polyimide can be used to provide various kinds of composite materials for aircraft matrices, electric and electronic appliances and others.

    摘要翻译: 根据本发明制备了新型热固性聚酰亚胺和包含热固性聚酰亚胺和纤维增强材料的复合材料。 热固性聚酰亚胺通过热处理线性聚酰胺酸或通过使用4,4'-双(3-氨基苯氧基)联苯和均苯四酸二酐作为必需单体制备的线性聚酰亚胺或通过加入4,4'-二氨基二苯醚或3 ,3',4,4'-联苯四羧酸二酐加入到基本单体中,并通过用具有碳 - 碳三键的芳族二羧酸酐封端分子链末端。 热固性聚酰亚胺具有热塑性聚酰亚胺的基本优异性能,并且还具有增强的耐热性和改善的机械性能。 热固性聚酰亚胺可用于为飞机基体,电气和电子设备等提供各种复合材料。

    Formed polyimide article
    25.
    发明授权
    Formed polyimide article 失效
    形成聚酰亚胺制品

    公开(公告)号:US5374708A

    公开(公告)日:1994-12-20

    申请号:US741460

    申请日:1991-08-08

    摘要: Polyimide filaments and polyimide films having great strength, high elastic modulus and high crystallinity and comprising a novel polyimide which can be melt-processed without impairing high crystallinity and which essentially consists of recurring structural units represented by the formula (I): ##STR1## more than 85 mol % the polyimide consists of recurring structural units of the formula (II): ##STR2## and from 0.5 to 15 mol % of the polyimide consists of recurring structural units represented by the formula (III), the formula (II) exclusive, the formula (IV) and/or the formula (V).

    摘要翻译: PCT No.PCT / JP90 / 01679 Sec。 371日期1991年8月8日 102(e)日期1991年8月8日PCT 1990年12月21日PCT PCT。 出版物WO91 / 09900 日本1991年7月11日。具有强度高,弹性模量高,结晶度高的聚酰亚胺丝和聚酰亚胺膜,其包含可以熔融加工而不损害高结晶度的新型聚酰亚胺,并且其主要由式(10)表示的重复结构单元组成 I):(I)大于85mol%的聚酰亚胺由式(II)的重复结构单元组成:图像(II)和0.5至15mol%的聚酰亚胺由代表性的重复结构单元组成 通式(III),式(II)排除,式(IV)和/或式(V)。

    Readily processable polyimide and preparation process of same
    27.
    发明授权
    Readily processable polyimide and preparation process of same 失效
    易于加工的聚酰亚胺及其制备方法相同

    公开(公告)号:US5268447A

    公开(公告)日:1993-12-07

    申请号:US914015

    申请日:1992-07-15

    IPC分类号: C08G73/10 C08G69/26

    CPC分类号: C08G73/1071

    摘要: A readily melt processable polyimide obtained by reacting diamine represented by the formula: 4,4' ##STR1## wherein n is an integer of 1 or 2, with 3,3'4,4' -diphenylethertetracarboxylic dianhydride and/or 4,4' -(p-phenylenedioxy)diphthalic dianhydride or a mixture of these tetracarboxylic acid dianhydrides and pyromellitic dianhydride in the presence of phthalic anhydride.

    摘要翻译: 一种容易熔融加工的聚酰亚胺,其通过使由下式表示的二胺与4,4'-二苯基醚四羧酸二酐和/或4,4'-二苯基四羧酸二酐反应得到,其中n为1或2的整数, - (对亚苯基二氧基)二邻苯二甲酸二酐或这些四羧酸二酐和均苯四甲酸二酐在邻苯二甲酸酐存在下的混合物。

    Liquid crystal polyamide-imide copolymer
    28.
    发明授权
    Liquid crystal polyamide-imide copolymer 失效
    液晶聚酰胺 - 酰亚胺共聚物

    公开(公告)号:US5821319A

    公开(公告)日:1998-10-13

    申请号:US627037

    申请日:1996-04-03

    摘要: A sliding material and a heat resistant filament which primarily comprises a liquid crystal polyimide, a liquid crystal polyamide or a liquid crystal polyamide-imide copolymer having at least one recurring structural unit selected from the formula (1) and the formula (2) and is excellent in heat resistance, mechanical characteristics and other fundamental properties of polyimides, and relates to significant improvement of heat-resistance by heat-treating the sliding material, the filament and the molded items. The liquid crystal polyamide-imide copolymer which comprises in a polymer molecule 0.05.about.0.95 mole ratio of the recurring structural units of the formula (1) and 0.95.about.0.05 mole ratio of recurring structural units of the formula (2) has excellent processing ability ##STR1##

    摘要翻译: 一种滑动材料和耐热丝,其主要包括具有至少一个选自式(1)和式(2)的重复结构单元的液晶聚酰亚胺,液晶聚酰胺或液晶聚酰胺 - 酰亚胺共聚物,并且是 聚酰亚胺的耐热性,机械特性和其它基本性能优异,并且涉及通过热处理滑动材料,长丝和模制品而显着提高耐热性。 在聚合物分子中含有式(1)的重复结构单元的0.05分子量分数0.95摩尔比和式(2)的重复结构单元的0.95摩尔比的液晶聚酰胺 - 酰亚胺共聚物具有优异的加工能力, (1) (2)